Architect Resources - Roof Access
Surespan SRHP Thermally broken roof hatch. 50mm insulation offering a U-value of 0.43 W/m²K. Manufactured from aluminium. Curb liner and L01 internal Cablock as standard. Can be powder coated internally and externally.
Available Sizes with Structural Opening
| PRODUCT REFERENCE | STRUCTURAL OPENING (MM) | WEIGHT |
|---|---|---|
| SRHP50/60.60 | 600 x 600 | 42 kg |
| SRHP50/75.75 | 750 x 750 | 54 kg |
| SRHP50/75.90 | 750 x 900 | 58 kg |
| SRHP50/90.90 | 900 x 900 | 60 kg |
| SRHP50/10.10 | 1000 x 1000 | 66 kg |
| SRHP50/12.12 | 1200 x 1200 | 75 kg |
| SRHP50/15.75 | 1500 x 750 | 75 kg |
| SRHP50/25.75 | 2500 x 750 | 85 kg |
L01 Internal Lock
L04 External Lock
L07 Deadlock
Downloads
Drawings (.DWG)
Double Leaf Drawings (.DWG)
BIM Models (Revit)
Ladder Access
SRHP/TB-ZIP-ES-JAK
Surespan SRHP Roof Hatch with ZIP Retractable Ladder, extended skirt liner and a jakdor ceiling access panel.
SRHP/TB-SLCRH
SRHP Roof Hatch with Fixed vertical ladder, safety cage and retractable handhold.
SRHP/TB-SHPS
SRHP Roof Hatch with SHP Companionway Ladder available in a variety of applications.
Design Considerations
Fixed Vertical Ladder
- Roof hatches should be easily operated while retaining safe points of contact. For a rule of thumb we highly recommend 3 points of contact onto the ladder at all times.
- The size of the roof hatch should be at least 900 x 750 to offer enough headroom for the user.
- Ladder should be positioned opposite the hinge side so the lid is behind the user (size permitting) or to the side.
- Consideration must be given for external hand holds and handrails to offer further support for exiting and entering the roof void.
ZIP Retractable ladder
- The ZIP ladder is to be mounted at the lowest point of the aperture
- A further 50mm must be allowed if it is to be used with a Jakdor access panel
- ZIP 4 – 7 ladders are available up to a height of 3.39m
- A bespoke ZIP 8 is available for heights above 2.5m and is povided with an integral wooden trap door. The ZIP8 allows top down operation.
- The minimum dimension for a ZIP ladder is 640mm without a ceiling panel or 740mm with a ceiling panel
- Wall mouned rungs if required have a minimum spacing of 220mm
SHIPS Companionway ladder
- Roof hatches with a SHIPS ladder should provide a minimum headroom clearance of 1200 according to BS 5395.
- Single line hand rail must be included either side of the ladder
- The ladders are designed for use in the 65° to 75° range.
- Heights over 3 metres require an intermediate platform
- Consideration must be given for external hand holds and handrails to offer further support for exiting and entering the roof void.
